题目内容
7．-Would you like to go bike riding with us tomorrow？-Sure，____ I am busy．（ ）| A． | since | B． | unless | C． | when | D． | until |
分析 --明天你愿意和我们一起去骑自行车兜风吗？
--当然愿意，除非我很忙．
解答 答案：B．
本题考查的是从属连词的辨析．根据题意，从前半句"Sure（当然愿意去）"和后半句"I am busy"来看，这里需要一个表假设的连词，结合选项，unless可以引导一个表假设的条件状语从句，意为"除非"，相当于if not．故选B．
点评 本题主要考查连词的用法，做此类题目一定要弄清句意，明白上下文之间的关系，才能更好地判断出所要用的连词．
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